If you do not want to testify, you should discuss this upfront with your civil attorney or the prosecutor.  The overwhelming majority of criminal cases result in a plea bargain, in which case you will not need to testify. In addition, many civil cases go to settlement without needing a trial, meaning you do not have to testify on trial. However, as a victim, you may be required to give a statement under oath, called a deposition. This deposition is often a question and answer session that takes place in an attorney’s office.